Automotive electrical systems
More informationAt Global Parts, we offer a wide selection of original used car parts, including automotive electrical systems for many popular car brands such as BMW, Mini, Mercedes, Audi, Volkswagen, and others. Each of our car parts undergoes quality control to ensure you receive a top-quality product.
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Audi A6 C6 Electric Parking Hand Brake Module Control Unit ECU 4F0907801B
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Airbag Module Citroen Berlingo Peugeot Partner Control Unit Sensor 9674290780
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MINI Cooper S R55 R56 LCI R60 Alternator Generator 150A Petrol 7604782
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Audi A4 B9 Front Door Control Module Unit Driver's Side 8W0959593E
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Mercedes W639 Vito 109 CDI OM646 Engine Unit Module ECU A6461507272 Manual
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BMW 7 Series E65 E66 Dashboard EXCH Control Display Screen 8,8" 6960096 9110639
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Alarm Sensor BMW E84 E91 Ultra Sonic-Module System Control Unit 9260874
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Light Module BMW F10 LCI Control Footwell Lightning ECU Unit FRM3 9313930
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Mercedes W212 Display Screen Information Navigation Dashboard A2129014606
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BMW E87 E90 E91 E60 E61 E63 N52 Alternator Generator 155A 7542529
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Mercedes W221 Fuse Box Control Unit SAM Module Relay A2219067200
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BMW 5 7 Series E61 E61N LCI E65 Air Suspension Supply Control Unit 6784314
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Mercedes SLK R171 Door Module Front Right Control Unit ECU A1718207026
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BMW E92 Xenon Footwell Light Module Control Unit ECU FRMFA 9126314
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Mercedes Vito W639 OM651.940 136HP 113 CDI Engine ECU Kit A6511501879 Keys+Lock
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Alternator Generator Mercedes W211 S211 OM646 Diesel Engine 200A A0131545902
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Mercedes CL203 CLC Head Unit CD Player Radio Audio Controller Unit A2038703594
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Fuse Box Mercedes W212 Front Relay Control Unit Electric Module SAM A2129000006
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Mercedes W205 Air Module ICM SRS Control Unit ECU A2059009527
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BMW E90 E92 335i Petrol N54 ECU Kit Control Unit DME 7568842 CAS3 Key Automatic
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Peugeot 3008 1.6 HDI T84 DV6-C Engine Control Unit Module ECU 9675391480 Manual
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VW Volkswagen Polo 6R Negative Battery Terminal Cable Wiring 6R0971537F
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BMW E81 E87 E90 E91 E92 E93 Active Steering Control Unit Module 1277022065
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Iveco Eurocargo F4AE0481 Engine Module ECU 4898111
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BMW E46 Control Unit Module Mirror Memory 6916054 61356916054
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Mini Cooper R50 Engine W10 116HP Engine ECU Kit DME 7513983 EWS Key Automatic
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Mercedes SLK R171 Roof Module Convertible Folding Top Control Unit A1719000000
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Head Unit BMW F07 GT Car Infotainment Computer Sat Nav Multimedia DAB 9275510
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Battery Clamp BMW F30 F31 F32 F80 Safety Positive Plus Pole Red 9208241
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MINI S R52 R53 W11 Engine Control Unit Module ECU DME 7553735 Manual
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Mercedes-Benz CLK W208 Front Left Right Door Wiring Loom Harness A2085405606
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VW Volkswagen Polo 6R Negative Battery Terminal Cable Wiring 6C0971235A
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BMW F20 F21 F22 Rear Bumper PDC Ultrasonic Sensor Valencia Orange Metallic B44
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Air Module Mercedes W211 CLS C219 SRS Control Unit ECU A2118702626
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BMW X3 E83 Drive For Window Lifter Motor Front Right O/S 6925964
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Mini Cooper S R56 LCI N18 1.6 184HP Engine ECU Kit DME 8610006 CAS3 Key Manual
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Ford Transit Fuse Box Cover Housing Lid Trim Cap 6C1T14A076C
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Air Module Sensor BMW Z4 E64 E85 B Pillar Right O/S 6962888
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Volkswagen Golf 5 GTI 1K 2.0 TFSI 200HP Engine Ecu Kit 1K0907115F Key Ignition
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Fuse Box Mercedes W204 Rear SAM Relay Fuse Box Control Module A2049000902
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BMW X1 E84 Display Screen Dashboard Navigation Monitor On-Board CID 6,5" 9289583
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BMW F20 F21 N47S1 Wiring Harness Engine Automatic Transmission Module 8578516
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BMW 3 Series E91 Max Brose Footwell Light Module Control Unit ECU 9286887
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BMW X5 Series E70 ECU Body Control Module Junction Box PL4 JBBFEII High 9193110
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Volkswagen VW Polo 6R Negative Battery Terminal Cable Wiring 6R0971226A
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Mercedes W212 Engine Alternator Generator A0009062100
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Audi A5 8T Parktronic Parking Sensor Module Unit ECU 8K0919475
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Mercedes W910 OM651 Engine Alternator Generator Bosch A6519065200
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MINI Cabrio R52 R53 Battery Cable Lead Positive Plus Pole Wiring 6942507
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Radio Head Unit Ford Transit Connect 6000 CD Media Player Unit 6C1T18C815AH
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Mercedes W177 W247 Driver's Seat Heating Control Unit Module ECU A1679000500
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BMW Mini Cooper R56 Footwell Light Module High EKS ECU LEAR PL3 FRM3R 3457428
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Mercedes W163 CL203 W203 Petrol Alternator Generator Valeo 120A A0111546402
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Mercedes SLK R171 Parking Distance Aid Sensor Control Unit Module A1715451332
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Mercedes S212 Estate Fuse Box Rear SAM Module Relay Control Unit A2129004201
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Voice Control Module Mercedes W221 Linguatronic Input System Dutch A2218703787
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Key components of vehicle electrical systems
Original electrical parts for popular car brands
A car's electrical system is a complex system responsible for many key functions—from engine starting to lighting and on-board electronics. Modern cars are equipped with increasingly advanced electrical solutions that not only improve driving comfort but also enhance safety. At the Global Parts automotive store you will find a wide range of used car parts , such as alternators, starters, batteries, control modules and other automotive electrical systems that perfectly fit BMW , Audi , Mercedes , Volkswagen , Mini and many others.
How does a car's electrical system work?
A car's electrical system is a complex system that consists of several key components that work together to ensure the vehicle's reliable operation:
- Battery accessories – Includes clamps, cables, holders and other components necessary for battery installation and maintenance.
- Electronic control modules and controllers – They control and manage the operation of various vehicle systems, such as the engine, air conditioning and ABS.
- Alternators and generators – Responsible for generating electricity and charging the battery while the engine is running.
- Parts for alternators and generators – Including voltage regulators, brushes and bearings that ensure proper operation of the alternator.
- Starters – Key components of the starting system that enable the engine to be started.
- Starter parts – Including bendixes, rotors and solenoids necessary for the proper operation of the starter.
- Batteries – They store the electrical energy necessary to start the engine and power on-board systems.
- Wires, harnesses and connectors – They transmit energy and electrical signals between various vehicle systems.
- Fuses and fuse boxes – Protect the electrical system against overloads and short circuits.
- Relays – They control the flow of current in individual electrical circuits of the vehicle. A functioning electrical system is the basis for the reliability of your car, regardless of operating conditions.
Key technical parameters of electrical systems
Each of these components has specific technical parameters that determine its compatibility with the vehicle. For example, alternators installed in mid-range cars (e.g., Volkswagen Passat B6) typically have a capacity of 90 A to 140 A, while luxury vehicles (e.g., Mercedes S-Class) require alternators with a capacity exceeding 180 A. Starter motors vary in torque and operating voltage – the standard is 12 V, while 24 V starters are used in heavy-duty vehicles.
Why is it worth taking care of your car's electrical system?
Regular maintenance and replacement of electrical system components is key to reliability and road safety. Faulty components can lead to:
- Problems starting the engine.
- Failure of safety systems such as ABS or airbags.
- Decreased efficiency of on-board equipment, e.g. lighting or air conditioning. At the Global Parts store we offer original used car parts , which have undergone detailed quality tests, ensuring their full functionality.
Symptoms of electrical system disruptions
In practice, electrical faults manifest themselves in a variety of ways. Drivers most often notice: dimming lights when parked, difficulty starting the engine, a voltage drop on the on-board computer, or air conditioning malfunctions. The table below presents typical correlations:
| Symptom | Possible cause | Item to check |
|---|---|---|
| Difficulty starting the engine | Worn out starter or battery | Starter motor, battery |
| Dimming the lights | Inefficient alternator | Alternator, voltage regulator |
| Electric windows not working | Damaged relays or harness | Relays, wires |
How to choose the right parts for your electrical system?
When choosing parts for the electrical system, such as alternators, starters or control modules, it is worth paying attention to:
- Vehicle-specific fit – Every car make and model requires specific specifications. At Global Parts, you'll find parts that perfectly fit BMW , Audi , Mercedes , Volkswagen , Mini, and many more .
- Technical condition – All used parts we offer are thoroughly checked to ensure their reliability.
- Technical parameters – For example, alternators should have appropriate current output, adapted to the needs of your vehicle.
Compatibility and fit
The selection of electrical parts is based primarily on OEM part numbers, but matching them to specific parameters is equally important, including current, voltage, and the number of connector pins. For example, the 120A alternator used in the Audi A4 B7 differs significantly from the 150A version installed in the Audi A6 C6 . Therefore, using manufacturer catalogs or providing the VIN makes finding the right component much easier.
Why choose used electrical parts?
Purchase of used car parts This solution allows you to combine savings with quality. Why choose it?
- Lower costs – Used alternators, starters and other parts are cheaper than new ones, but offer the same high quality.
- Ecology – You support recycling and reduce waste by choosing used car parts .
- Wide range – We offer electrical parts for the most popular car brands, so you can easily find what you need.
How to take care of your car's electrical system?
To ensure your electrical system operates reliably for years, it is worth remembering a few rules:
- Regularly check the battery condition and charge level.
- Take care of your cables and connectors – corrosion or damage can lead to voltage drops and failures.
- Monitor the operation of the alternator and starter – early detection of problems will help avoid more serious breakdowns. If you have any problems, you will find the right car parts at Global Parts that will help restore your vehicle to full working order.
Step-by-step control procedures
- Measure the battery voltage with a multimeter – the resting value should be approximately 12.6 V.
- Check the charging voltage with the engine running – the correct range is 13.8–14.5 V.
- Assess the condition of the wires and terminals – lack of corrosion and a firm seat are essential.
- If in doubt, check the quiescent current consumption – it should not exceed 0.05–0.08 A.
FAQ - Frequently asked questions about electrical systems in cars
| Question | Answer |
|---|---|
| What is a car electrical system? | This is a set of components responsible for powering and controlling all electrical functions in the car – from engine starting to multimedia. |
| What is an alternator for in a car? | The alternator generates electrical current when the engine is running and charges the battery. |
| What is the difference between a starter and an alternator? | The starter motor is used solely to start the engine, while the alternator is responsible for generating energy while driving. |
| How to check if the battery is working? | Just measure its voltage – a healthy battery should have approximately 12.6 V at rest and maintain a voltage above 10 V during cranking. |
| What are the most common symptoms of car electrical failure? | Problems starting the engine, flashing warning lights, power windows not working or dimming lights. |
| Do electrical parts from one model fit another? | Sometimes yes, but the key is to match it by VIN or OEM number – this guarantees compatibility. |
| How often should you check your electrical system? | It is worth performing basic diagnostics (battery, alternator) at least once a year or before a long trip. |
Summary: Automotive electrical systems at Global Parts Automotive Store
Automotive electrical systems are the foundation of the reliability and comfort of every modern vehicle. By choosing the right parts, such as alternators, batteries, and control modules, you can ensure your car's full operational efficiency. The Global Parts automotive store invites you to browse our wide selection of original used car parts . Whether you're looking for car parts for BMW , Audi , Volkswagen , Mercedes, Mini , or others, you'll find them at competitive prices. We strive to ensure every customer finds the right parts for their car, and if you have any questions or concerns about selecting the right components, we're happy to help! Please contact us – we're here to help! For more information and interesting facts, visit our automotive blog .